/*******************************************************************************************************************
Cycling '74 License for Max-Generated Code for Export
Copyright (c) 2016 Cycling '74
The code that Max generates automatically and that end users are capable of exporting and using, and any
  associated documentation files (the “Software”) is a work of authorship for which Cycling '74 is the author
  and owner for copyright purposes.  A license is hereby granted, free of charge, to any person obtaining a
  copy of the Software (“Licensee”) to use, copy, modify, merge, publish, and distribute copies of the Software,
  and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The Software is licensed to Licensee only for non-commercial use. Users who wish to make commercial use of the
  Software must contact the copyright owner to determine if a license for commercial use is available, and the
  terms and conditions for same, which may include fees or royalties. For commercial use, please send inquiries
  to licensing@cycling74.com.  The determination of whether a use is commercial use or non-commercial use is based
  upon the use, not the user. The Software may be used by individuals, institutions, governments, corporations, or
  other business whether for-profit or non-profit so long as the use itself is not a commercialization of the
  materials or a use that generates or is intended to generate income, revenue, sales or profit.
The above copyright notice and this license shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
  THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
  CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  DEALINGS IN THE SOFTWARE.
*******************************************************************************************************************/

#ifndef GENLIB_COMMON_H
#define GENLIB_COMMON_H 1

#include "genlib_platform.h"

//////////// genlib_common.h ////////////
// common data structure header file -- this is the stuff required by the
// common code and accessed by the export and max code

#define DSP_GEN_MAX_SIGNALS 128

#ifdef GENLIB_USE_FLOAT32
typedef float t_sample;
typedef float t_param;
#else
typedef double t_sample;
typedef double t_param;
#endif
typedef char *t_ptr;

typedef long t_genlib_err;
typedef enum {
	GENLIB_ERR_NONE =			0,	///< No error
	GENLIB_ERR_GENERIC =		-1,	///< Generic error
	GENLIB_ERR_INVALID_PTR =	-2,	///< Invalid Pointer
	GENLIB_ERR_DUPLICATE =		-3,	///< Duplicate
	GENLIB_ERR_OUT_OF_MEM =		-4,	///< Out of memory

	GENLIB_ERR_LOOP_OVERFLOW =  100,	// too many iterations of loops in perform()
	GENLIB_ERR_NULL_BUFFER =	101	// missing signal data in perform()

} e_genlib_errorcodes;

typedef enum {
	GENLIB_PARAMTYPE_FLOAT	=	0,
	GENLIB_PARAMTYPE_SYM	= 	1
} e_genlib_paramtypes;

struct ParamInfo
{
	t_param defaultvalue;
	void *defaultref;
	char hasinputminmax;
	char hasminmax;
	t_param inputmin, inputmax;
	t_param outputmin, outputmax;
	const char *name;
	const char *units;
	int paramtype;		// 0 -> float64, 1 -> symbol (table name)
	t_param exp;			// future, for scaling
};

struct CommonState
{
	t_sample sr;
	int vs;
	int numins;
	int numouts;
	const char **inputnames;
	const char **outputnames;
	int numparams;
	ParamInfo *params;

	void *parammap;	// implementation-dependent
	void *api;			// implementation-dependent
};

// opaque interface to float32 buffer:
typedef struct _genlib_buffer t_genlib_buffer;
typedef struct {
	char b_name[256];	///< name of the buffer
	float *b_samples;	///< stored with interleaved channels if multi-channel
	long b_frames;		///< number of sample frames (each one is sizeof(float) * b_nchans bytes)
	long b_nchans;		///< number of channels
	long b_size;		///< size of buffer in floats
	float b_sr;			///< sampling rate of the buffer
	long b_modtime;		///< last modified time ("dirty" method)
	long b_rfu[57];		///< reserved for future use
} t_genlib_buffer_info;

// opaque interface to float64 buffer:
typedef struct _genlib_data t_genlib_data;
typedef struct {
	int					dim, channels;
	t_sample *			data;
} t_genlib_data_info;

typedef void (*setparameter_method) (CommonState *, long, t_param, void *);
typedef void (*getparameter_method) (CommonState *, long, t_param *);

#endif // GENLIB_COMMON_H